q_shared.h

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/*
All original material Copyright (C) 2002-2020 UFO: Alien Invasion.

Original file from Quake 2 v3.21: quake2-2.31/game/q_shared.h
Copyright (C) 1997-2001 Id Software, Inc.

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/

#pragma once

#include "../shared/ufotypes.h"
#include "../shared/shared.h"
#include "../shared/mathlib.h"
#include "../shared/defines.h"
#include "../common/list.h"

#include "inv_shared.h"
#include "chr_shared.h"
#include "q_sizes.h"

#ifdef DEDICATED_ONLY
/* no gettext support for dedicated servers */
# define _(String) String
# define ngettext(x, y, cnt) x
#endif

/*
==============================================================
SYSTEM SPECIFIC
==============================================================
*/

/* this is only here so the functions in q_shared.c can link */
void Sys_Error(const char* error, ...) __attribute__((noreturn, format(__printf__, 1, 2)));
void Com_Printf(const char* msg, ...) __attribute__((format(__printf__, 1, 2)));
void Com_DPrintf(int level, const char* msg, ...) __attribute__((format(__printf__, 2, 3)));

#define TEAM_NO_ACTIVE -1
#define TEAM_CIVILIAN   0
#define TEAM_PHALANX    1
#define TEAM_ALIEN      7
#define TEAM_MAX_HUMAN  TEAM_ALIEN - 1

/*
==========================================================
ELEMENTS COMMUNICATED ACROSS THE NET
==========================================================
*/

#define EVENT_INSTANTLY     0x80

typedef enum {
    EV_NULL,
    EV_RESET,
    EV_START,
    EV_ENDROUND,    
    EV_ENDROUNDANNOUNCE,

    EV_RESULTS,
    EV_CENTERVIEW,
    EV_MOVECAMERA,

    EV_ENT_APPEAR,
    EV_ENT_PERISH,  
    EV_ENT_DESTROY,
    EV_ADD_BRUSH_MODEL,
    EV_ADD_EDICT,

    EV_ACTOR_APPEAR,
    EV_ACTOR_ADD,
    EV_ACTOR_TURN,          
    EV_ACTOR_MOVE,
    EV_ACTOR_REACTIONFIRECHANGE,
    EV_ACTOR_REACTIONFIREADDTARGET,
    EV_ACTOR_REACTIONFIREREMOVETARGET,
    EV_ACTOR_REACTIONFIRETARGETUPDATE,
    EV_ACTOR_REACTIONFIREABORTSHOT,

    EV_ACTOR_START_SHOOT,
    EV_ACTOR_SHOOT,
    EV_ACTOR_SHOOT_HIDDEN,
    EV_ACTOR_THROW,
    EV_ACTOR_END_SHOOT,

    EV_ACTOR_DIE,
    EV_ACTOR_REVITALISED,
    EV_ACTOR_STATS,
    EV_ACTOR_STATECHANGE,   
    EV_ACTOR_RESERVATIONCHANGE,
    EV_ACTOR_WOUND,

    EV_INV_ADD,
    EV_INV_DEL,
    EV_INV_AMMO,
    EV_INV_RELOAD,
    EV_INV_TRANSFER,

    /* func_breakables */
    EV_MODEL_EXPLODE,       
    EV_MODEL_EXPLODE_TRIGGERED, 
    EV_PARTICLE_APPEAR,
    EV_PARTICLE_SPAWN,

    EV_SOUND,

    EV_DOOR_OPEN,
    EV_DOOR_CLOSE,
    EV_CLIENT_ACTION,
    EV_RESET_CLIENT_ACTION,

    EV_CAMERA_APPEAR,

    EV_NUM_EVENTS
} event_t;

typedef enum {
    ET_NULL,
    ET_ACTORSPAWN,
    ET_ACTOR,
    ET_ITEM,
    ET_BREAKABLE,
    ET_TRIGGER,
    ET_TRIGGER_HURT,
    ET_TRIGGER_TOUCH,
    ET_TRIGGER_RESCUE,
    ET_TRIGGER_NEXTMAP,
    ET_DOOR,
    ET_DOOR_SLIDING,
    ET_ROTATING,
    ET_ACTOR2x2SPAWN,
    ET_ACTOR2x2,
    ET_CIVILIANTARGET,
    ET_MISSION,
    ET_ACTORHIDDEN,
    ET_PARTICLE,
    ET_SOUND,
    ET_SOLID,
    ET_MESSAGE,
    ET_SMOKE,
    ET_FIRE,
    ET_SMOKESTUN,
    ET_CAMERA,

    ET_MAX,

    ENTITY_TYPE_ENSURE_32BIT = 0x7FFFFFFF
} entity_type_t;

typedef enum {
    CAMERA_MOBILE,
    CAMERA_STATIONARY,

    CAMERA_MAX,

    CAMERA_ENSURE_32BIT = 0x7FFFFFFF
} camera_type_t;

#define DOOR_ROTATION_ANGLE 90

typedef enum {
    PA_NULL,
    PA_TURN,
    PA_MOVE,
    PA_STATE,
    PA_SHOOT,
    PA_USE,
    PA_INVMOVE,
    PA_REACT_SELECT,
    PA_RESERVE_STATE,

    PA_NUM_EVENTS
} player_action_t;

extern const char* pa_format[PA_NUM_EVENTS];

typedef int32_t shoot_types_t;
#define ST_RIGHT 0

#define ST_RIGHT_REACTION 1

#define ST_LEFT 2

#define ST_LEFT_REACTION 3

#define ST_HEADGEAR 4

#define ST_NUM_SHOOT_TYPES 5

#define IS_SHOT_REACTION(x) ((x) == ST_RIGHT_REACTION || (x) == ST_LEFT_REACTION)

#define IS_SHOT_LEFT(x)     ((x) == ST_LEFT || (x) == ST_LEFT_REACTION)

#define IS_SHOT_RIGHT(x)    ((x) == ST_RIGHT || (x) == ST_RIGHT_REACTION)

#define IS_SHOT_HEADGEAR(x)    ((x) == ST_HEADGEAR)

/* shoot flags */
#define SF_IMPACT   1   
#define SF_BODY     2   
#define SF_BOUNCING 4   
#define SF_BOUNCED  8   
/* is used in events where two edicts can be send, one actor and one receiver - but one of them can
 * be nullptr, e.g. in a case where the actor is a trigger */
#define SKIP_LOCAL_ENTITY (-1)

#define MAX_DEATH   3   
/* State flags - transferred as short (so max 16 bits please) */
/* public states */
#define STATE_PUBLIC        0x00FF  
#define STATE_DEAD          0x0003  
#define STATE_CROUCHED      0x0004
#define STATE_PANIC         0x0008

#define STATE_RAGE          0x0010  
#define STATE_INSANE        0x0020
#define STATE_STUN          0x0043  
#define STATE_DAZED         0x0080  
/* private states */
#define STATE_REACTION      0x0300  
#define STATE_SHAKEN        0x0400  
#define STATE_XVI           0x0800  
#define GRAVITY             500.0

#define MAX_SKILL   100
#define MAX_MAXHP       255
#define MIN_TU              39
#define WEIGHT_LIGHT    0.2f
#define WEIGHT_HEAVY    0.5f
#define WEIGHT_NORMAL_PENALTY   0.3f
#define WEIGHT_HEAVY_PENALTY    0.6f
#define WEIGHT_FACTOR   1000.0f

#define GET_ENCUMBRANCE_PENALTY(weight, max)    (1.0f - ((weight) > (max) * WEIGHT_FACTOR * WEIGHT_HEAVY ? WEIGHT_HEAVY_PENALTY : (weight) > (max) * WEIGHT_FACTOR * WEIGHT_LIGHT ? WEIGHT_NORMAL_PENALTY : 0.0f))

#define GET_ACC( ab, sk, pn )   ((pn) - (((float)(ab) - 10) / (MAX_SKILL / 2) + ((float)(sk) - 10) / (MAX_SKILL / 2)) / 2)
#define GET_MORALE( ab )        (std::min((100 + (ab) * 150/MAX_SKILL), 255))
#define GET_TU( ab, md )        (MIN_TU * (md) + (ab) * 20 / MAX_SKILL)

#define DOOR_OPEN_REVERSE 4
#define GET_SLIDING_DOOR_SHIFT_VECTOR(dir, speed, vecout) \
    do { const bool reverse = (dir) & DOOR_OPEN_REVERSE; VectorClear(vecout); vecout[dir & 3] = reverse ? -speed : speed; } while (0);

/* For a RMA with 50 tiles we need about 1k. So let's take 2k */
#define MAX_TILESTRINGS         8
#define MAX_CLIENTS             256     /* absolute limit */
#define MAX_GENERAL             (MAX_CLIENTS*2) /* general config strings */
#define MAX_ENTITYSTRINGS       2

#define CS_NAME                 0
#define CS_MAPTITLE             1       
#define CS_MAXCLIENTS           2
#define CS_MAPCHECKSUM          3       
#define CS_MAXSOLDIERSPERTEAM   4       
#define CS_MAXSOLDIERSPERPLAYER 5       
#define CS_ENABLEMORALE         6       
#define CS_MAXTEAMS             7       
#define CS_PLAYERCOUNT          8       
#define CS_VERSION              9       
#define CS_UFOCHECKSUM          10      
#define CS_OBJECTAMOUNT         11      
#define CS_LIGHTMAP             12      
#define CS_MAPZONE              13      
#define CS_VICTORY_CONDITIONS   14      
#define CS_ENTITYSTRING         15      
#define CS_TILES                (CS_ENTITYSTRING+MAX_ENTITYSTRINGS)
#define CS_POSITIONS            (CS_TILES+MAX_TILESTRINGS)
#define CS_MODELS               (CS_POSITIONS+MAX_TILESTRINGS)
#define CS_PLAYERNAMES          (CS_MODELS+MAX_MODELS)
#define CS_GENERAL              (CS_PLAYERNAMES+MAX_CLIENTS)
#define MAX_CONFIGSTRINGS       (CS_GENERAL+MAX_GENERAL)

#define MAX_GAMETYPES 16

#define MAX_CVARLISTINGAMETYPE 16
typedef struct cvarlist_s {
    char name[MAX_VAR];
    char value[MAX_VAR];
} cvarlist_t;

typedef struct gametype_s {
    char id[MAX_VAR];   
    char name[MAX_VAR]; 
    cvarlist_t cvars[MAX_CVARLISTINGAMETYPE];
    int num_cvars;
} gametype_t;

class TerrainDef        /* a single entry in the table */
{
public:
    byte rgbRed;
    byte rgbGreen;
    byte rgbBlue;
    char terrainName[20];
    float survivalChance;
    float rainChance;
    float snowChance;

    TerrainDef() : rgbRed(128), rgbGreen(255), rgbBlue(0), survivalChance(2.5f), rainChance(0.2f), snowChance(0.1f) {
        strcpy(terrainName, "grass");
    }
    TerrainDef(byte _rgbRed, byte _rgbGreen, byte _rgbBlue, const char* _terrainName, float _survivalChance, float _rainChance, float _snowChance) {
        rgbRed = _rgbRed;
        rgbGreen = _rgbGreen;
        rgbBlue = _rgbBlue;
        strcpy(terrainName, _terrainName);
        survivalChance = _survivalChance;
        rainChance = _rainChance;
        snowChance = _snowChance;
    }
};

#define MAX_TERRAINDEFS 16
class TerrainDefs
{
    const TerrainDef* terrainDefTable[MAX_TERRAINDEFS];

    inline const TerrainDef* findByColor(const byte* const color) const {
        return findByColor(color[0], color[1], color[2]);
    }
    inline const TerrainDef* findByColor(byte red, byte green, byte blue) const {
        for (int i = 0; i < MAX_TERRAINDEFS; i++) {
            const TerrainDef* p = terrainDefTable[i];
            if (!p)
                break;
            if (p->rgbRed == red && p->rgbGreen == green && p->rgbBlue == blue)
                return p;
        }
        return nullptr;
    }
    inline const TerrainDef* findByName(const char* tname) const {
        for (int i = 0; i < MAX_TERRAINDEFS; i++) {
            const TerrainDef* p = terrainDefTable[i];
            if (!p)
                break;
            if (Q_streq(p->terrainName, tname))
                return p;
        }
        return nullptr;
    }
public:
    TerrainDefs() {
        terrainDefTable[0] = nullptr;
    }
    ~TerrainDefs() {
        for (int i = 0; i < MAX_TERRAINDEFS; i++) {
            if (terrainDefTable[i])
                delete terrainDefTable[i];
        }
    }

    bool add(const TerrainDef* tdef);
    const char* getWeather (const byte* const color);

    inline float getSurvivalChance(const byte* const color) const {
        const TerrainDef* p = findByColor(color);
        return p ? p->survivalChance : 0.0;
    }
    inline float getRainChance(const byte* const color) const {
        const TerrainDef* p = findByColor(color);
        return p ? p->rainChance : 0.0;
    }
    inline float getSnowChance(const byte* const color) const {
        const TerrainDef* p = findByColor(color);
        return p ? p->snowChance : 0.0;
    }

    inline const char* getTerrainName(const byte* const color) const {
        const TerrainDef* p = findByColor(color);
        return p ? p->terrainName : "grass";
    }
};

typedef struct mapDef_s {
    /* general */
    char* id;               
    char* mapTheme;         
    linkedList_t* params;   
    char* description;      
    char* victoryCondition; 
    float victoryBonusPerAlien; 
    char* missionBriefing;  
    char* size;             
    char* civTeam;          
    /* multiplayer */
    bool multiplayer;       
    int teams;              
    linkedList_t* gameTypes;
    /* singleplayer */
    bool campaign;          
    bool singleplayer;      
    int hwclass;            
    int maxAliens;          
    bool hurtAliens;        
    linkedList_t* terrains;     
    linkedList_t* populations;  
    linkedList_t* cultures;     
    bool storyRelated;          
    int timesAlreadyUsed;       
    linkedList_t* ufos;         
    linkedList_t* aircraft;     
    char* onwin;        
    char* onlose;       
} mapDef_t;

#define MapDef_ForeachCondition(var, condition) \
    for (int var##__loopvar = 0; (var) = nullptr, var##__loopvar < Com_GetMapDefNumber(); var##__loopvar++) \
        if ((var) = Com_GetMapDefByIDX(var##__loopvar), !(condition)) {} else

#define MapDef_Foreach(var) MapDef_ForeachCondition(var, 1)
int Com_GetMapDefNumber(void);
mapDef_t* Com_GetMapDefByIDX(int index);
mapDef_t* Com_GetMapDefinitionByID(const char* mapDefID);

typedef struct csi_s {
    objDef_t ods[MAX_OBJDEFS];
    int numODs;

    implantDef_t implants[MAX_IMPLANTS];
    int numImplants;

    invDef_t ids[MAX_INVDEFS];
    int numIDs;

    int damNormal, damBlast, damFire;
    int damShock;   
    int damLaser, damPlasma, damParticle;
    int damStunGas;     
    int damStunElectro; 
    int damSmoke;       
    int damIncendiary;  
    equipDef_t eds[MAX_EQUIPDEFS];
    int numEDs;

    damageType_t dts[MAX_DAMAGETYPES];
    int numDTs;

    teamDef_t teamDef[MAX_TEAMDEFS];
    int numTeamDefs;

    const teamDef_t* alienTeams[MAX_TEAMS_PER_MISSION];
    const chrTemplate_t* alienChrTemplates[MAX_TEAMS_PER_MISSION];
    int numAlienTeams;

    chrTemplate_t chrTemplates[MAX_CHARACTER_TEMPLATES];
    int numChrTemplates;
    linkedList_t* bodyTemplates;

    linkedList_t* actorNames;

    ugv_t ugvs[MAX_UGV];
    int numUGV;

    gametype_t gts[MAX_GAMETYPES];
    int numGTs;

    mapDef_t mds[MAX_MAPDEFS];
    int numMDs;

    TerrainDefs terrainDefs;
} csi_t;

extern csi_t csi;

#define REJ_PASSWORD_REQUIRED_OR_INCORRECT "Password required or incorrect."
#define BAD_RCON_PASSWORD "Bad rcon_password."
#define REJ_BANNED "Banned."
#define REJ_SERVER_FULL "Server is full."
#define REJ_SERVER_VERSION_MISMATCH "The server is running a different version of the game."
#define REJ_GAME_ALREADY_STARTED "Game has started already."
#define REJ_CONNECTION_REFUSED "Connection refused."

#define SV_CMD_CONNECT "connect"
#define SV_CMD_RCON "rcon"
#define SV_CMD_STATUS "status"
#define SV_CMD_TEAMINFO "teaminfo"
#define SV_CMD_INFO "info"
#define SV_CMD_PRINT "print"

/* unused */
#define SV_CMD_ACK "ack"
#define CL_CMD_PING "ping"
#define CL_CMD_ECHO "echo"
/* unused end */

#define CL_PRECACHE "precache"
#define CL_SPAWNSOLDIERS "spawnsoldiers"
#define CL_STARTMATCH "startmatch"

#define CL_CMD_COMMAND "cmd"
#define CL_CMD_CLIENT_CONNECT "client_connect"

#define NET_STATE_NEW "new"
#define NET_STATE_BEGIN "begin"
#define NET_STATE_STARTMATCH "startmatch"
#define NET_STATE_DISCONNECT "disconnect"
#define NET_STATE_INFO "info"